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author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-12-18 21:45:34 +0100 |
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committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-12-18 21:45:34 +0100 |
commit | fe7f0810ddf41939bbdd22fe39b0b80fdfe0636b (patch) | |
tree | 7ae945711f3b37183fef66e694cedd35f8e722e9 /board/avionic-design/common/tamonten-ng.c | |
parent | f4e4aadeaddaf148f02f52b9e24ea19ab84f3475 (diff) | |
parent | 766afc3dff35f8f257deb0373735a328c8206880 (diff) | |
download | u-boot-imx-fe7f0810ddf41939bbdd22fe39b0b80fdfe0636b.zip u-boot-imx-fe7f0810ddf41939bbdd22fe39b0b80fdfe0636b.tar.gz u-boot-imx-fe7f0810ddf41939bbdd22fe39b0b80fdfe0636b.tar.bz2 |
Merge branch 'u-boot-tegra/master' into 'u-boot-arm/master'
Diffstat (limited to 'board/avionic-design/common/tamonten-ng.c')
-rw-r--r-- | board/avionic-design/common/tamonten-ng.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/board/avionic-design/common/tamonten-ng.c b/board/avionic-design/common/tamonten-ng.c new file mode 100644 index 0000000..9d395c6 --- /dev/null +++ b/board/avionic-design/common/tamonten-ng.c @@ -0,0 +1,85 @@ +/* + * (C) Copyright 2013 + * Avionic Design GmbH <www.avionic-design.de> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/pinmux.h> +#include <asm/arch/gp_padctrl.h> +#include <asm/arch/gpio.h> +#include <asm/gpio.h> +#include "pinmux-config-tamonten-ng.h" +#include <i2c.h> + +#define PMU_I2C_ADDRESS 0x2D + +#define PMU_REG_LDO5 0x32 + +#define PMU_REG_LDO_HIGH_POWER 1 + +/* Voltage selection for the LDOs with 100mV resolution */ +#define PMU_REG_LDO_SEL_100(mV) ((((mV - 1000) / 100) + 2) << 2) + +#define PMU_REG_LDO_100(st, mV) (PMU_REG_LDO_##st | PMU_REG_LDO_SEL_100(mV)) + +#define PMU_LDO5(st, mV) PMU_REG_LDO_100(st, mV) + +void pinmux_init(void) +{ + pinmux_config_table(tamonten_ng_pinmux_common, + ARRAY_SIZE(tamonten_ng_pinmux_common)); + pinmux_config_table(unused_pins_lowpower, + ARRAY_SIZE(unused_pins_lowpower)); + + /* Initialize any non-default pad configs (APB_MISC_GP regs) */ + padgrp_config_table(tamonten_ng_padctrl, + ARRAY_SIZE(tamonten_ng_padctrl)); +} + +void gpio_early_init(void) +{ + /* Turn on the alive signal */ + gpio_request(GPIO_PV2, "ALIVE"); + gpio_direction_output(GPIO_PV2, 1); + + /* Remove the reset on the external periph */ + gpio_request(GPIO_PI4, "nRST_PERIPH"); + gpio_direction_output(GPIO_PI4, 1); +} + +void pmu_write(uchar reg, uchar data) +{ + i2c_set_bus_num(4); /* PMU is on bus 4 */ + i2c_write(PMU_I2C_ADDRESS, reg, 1, &data, 1); +} + +/* + * Do I2C/PMU writes to bring up SD card bus power + * + */ +void board_sdmmc_voltage_init(void) +{ + /* Enable LDO5 with 3.3v for SDMMC3 */ + pmu_write(PMU_REG_LDO5, PMU_LDO5(HIGH_POWER, 3300)); + + /* Switch the power on */ + gpio_request(GPIO_PJ2, "EN_3V3_EMMC"); + gpio_direction_output(GPIO_PJ2, 1); +} + +/* + * Routine: pin_mux_mmc + * Description: setup the MMC muxes, power rails, etc. + */ +void pin_mux_mmc(void) +{ + /* + * NOTE: We don't do mmc-specific pin muxes here. + * They were done globally in pinmux_init(). + */ + + /* Bring up the SDIO1 power rail */ + board_sdmmc_voltage_init(); +} |